public class Example6_1 {
  public static void main (String args[]){
    China zhang;
    Japan henlu;
    zhang= new China();
    henlu=new Japan();
    zhang.number=32+Computable.MAX;
    henlu.number=14+Computable.MAX;
    System.out.println("zhang的学号"+zhang.number+"，zhang求和结果"+zhang.f(100));
    System.out.println("henlu的学号"+henlu.number+",henlu求和结果"+henlu.f(100));
  }
}
